Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Chevrolet 3500Oil Type & Capacity
OEM spec from the factory service manual for the Base, Cutaway, 4.3L Eng VIN P, Gas variant.
Quick Answer
Oil Type
$API - SAE 5W-30
Capacity (w/ Filter)
6.00 QTS.
5.67 L
Variant
Base, Cutaway, 4.3L Eng VIN P, Gas
Note: DEXOS1 Gen2 Full synthetic engine oil.
Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
This vehicle's factory manual
The oil spec is above. This opens the fluids section of the 2021 Chevrolet 3500 Base, Cutaway, 4.3L Eng VIN P, Gas factory book.
Sister site: See this spec on WhatTypeOfOil.com — our quick oil type & capacity lookup for every vehicle.
Other specs:All specs
What You'll Need
Related for Your 2021 Chevrolet 3500
Frequently Asked Questions
- What type of oil does a 2021 Chevrolet 3500 take?
- The 2021 Chevrolet 3500 requires API - SAE 5W-30. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the Base, Cutaway, 4.3L Eng VIN P, Gas configuration.
- How much oil does a 2021 Chevrolet 3500 need?
- The 2021 Chevrolet 3500 takes 6.00 QTS. (5.67 L) of engine oil with the filter replaced.
- Can I use synthetic oil in my 2021 Chevrolet 3500?
- Yes — synthetic oil that meets the API - SAE 5W-30 specification is acceptable and often preferred for better protection and longer change intervals.
- What happens if I use the wrong oil in my 2021 Chevrolet 3500?
- Using oil that does not meet the API - SAE 5W-30 specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.